Hook apparatus



FIG. 1 is a front top perspective view of a hook apparatus further illustrating a front view, a right side view and a top view of the hook apparatus;

FIG. 2 is a left side view of a hook apparatus;

FIG. 3 is a right side view of a hook apparatus;

FIG. 4 is a rear view of a hook apparatus; and,

FIG. 5 is a bottom view of a hook apparatus. 

CLAIM The ornamental design for a hook apparatus, as shown and described. 